Improvement in tile machinery



L. T.'SCOFIELD.

TILE-MACHINERY. I No. 173,504. Patented Feb. is, 1876.

IJV'VENTOR N FEIERS, PHOTO-UTHOGRAFHER. WASHINGTON, DV 0,

Unrrnn STATES PATENT Qr rcn LEVI rsooFInLn, or oLnvnL-ANnoHIo.

IMPROVEMENT IN TlL'E MAQHINERV.

Specification forming part of Letters Patent N0.173,504, dated February15,1876; application filed a January 28, 1876. I r l To all whom it mayconcern Be it known that I, Lnv1 T. SooFIELn, of Cleveland, in thecounty of Ouyahoga and State of Ohio, have invented certain new anduseful Improvements in Machinery for Making Tiles or Bricks; and I dohereby declare the- I for making tiles or bricks; and, in the instanceshown in the drawings, is designed more especially for the purpose ofmaking floor-tile and ceiling-tile.

My invention consists, first, in a peculiar press, whereby the clay isforced through the die, and in machinery which, by "a continuous motionin one direction, will cause the plunger to advance and recede atregular intervals. My invention consists, second, in the combination,witha plunger, of a press at each end thereof, with the mechanism forreciprocating the plunger intermediate between th'e'two presses, as will.be hereinafter more fully described and claimed.

Inthe drawings, Figure 1 is a side elevation of a machine embodying myinvention, showing parts broken away to represent the interior mechanismof the press, and also the interior of the reciprocating mechanism. Fig.2 is a plan view' of same. Fig. 3 is a separate enlarged view of the diethrough which the .clay is forced as it emerges from the press. Thedrawings represent a press at each end of 5 the plunger.

A is a drive-shaft, which drives the upright shaft B through the mediumof the intermediate bevel-gear O. D is a mutilated bevelgear, one-halfof the bevel being provided with cogs and the other half plain. Thismutilated gear meshes alternately into the gears E E, which are placedon opposite sides of the mutilated gear D, the arrangement being suchthat the mutilated gear shall mesh into but one of the said wheels E orE. It is, therefore, apparent that, while the power is maintainedcontinuous in one direction, the mutilated gear will cause the wheels Eand E to revolve alternately in opposite directions. The wheels E E areattached rigidly to the revolving nut F. G is the plungenrod, which isthreaded into the revolving nut F, while the plungerrod itself isconstructed so as not to revolve, audit is,'therefore, causedto-reciprocate forward and backward as the bevel-gears E and E arecaused to reciprocate in their motion.- At each end of the plunger G isa head, H, which is made to fit closely in a receptacle or press, I,into which the clay is introduced that is to be formed into tiles orbricks. The presses or receptacles I are provided with openings J,through which the charge is introduced; and the plunger-heads H are eachprovided with a projecting flange, h, which, as the plunger is pressedforward, closes the passage J before the plunger exerts pressure uponthe charge. K is the opening through which the clay is forced and causedto emerge in the form of tile. It may be forced out over any suitablecore or cores K according to theshape that is desired to be given to theopenings through the tile; and if it is desired that the tile or brickshall issue in curve form, I place across'the opening K,

its passage,- and the clay will therefore emerge 1 from the opening Kmore rapidly along that portion not obstructed, and will, therefore,cause the tile to emerge in a curved form, which curve may be greater orless, according as the obstruction is increased or'diminished.

The die here shown at K K K will produce a tile substantially as shownin Fig. 4. It is understood that this machine, by changing the form ofits dies, and by changing the nature of the obstructions, is equallyadapted to making any style or shape of tile or brick, and is notlimited to the particular style and form. shown in Fig. 4, this beingshown simply as a demonstration of the invention. So, also, it isapparent that, instead of employing the press or receptacle 1 at eachend of the plunger G, I may employ but one such press; and it is alsoapparent that there are very many ways of'causing the plunger-shaft toreciprocate while the power is maintained constantly in the samedirection. I do not limit myself to any such particular means, but anyother means whereby this reciprocation is obtained will sufiice and maybe employed.

The invention consists essentially in the combination, with the plunger,of mechanism for causing the same to reciprocate while the power ismaintained constantly in the same direction, and combining with the saidplunger at one or both ends thereof heads H for forcing clay from atile-press, the whole combination constituting a new tile-machine.

It is apparent that there should be such a relation between the size ofthe wheels D and E as will cause the plunger to make a complete strokebefore reciprocating.

What I claim is i 1. In a tile or brick machine, the combination, with ascrew-threaded plunger-shaft, and a revolving nut engaging therewith, ofa power-shaftthat is driven constantly in the same direction, andintermediate mechanism whereby the plunger-shaft is reciprocated tiallyas and for the purpose specified.

4. The combination, with the opening K, of the inner cores K andobstruction K substantially as and for the purpose described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

, LEVI -T. SGOFIELD.

Witnesses:

H. T. HOWER, FRANCIS TOUMEY.

